The undersigned Plenipotentiaries declare the agreement of the Government of the German Reich and the Government of the U.S.S.R upon the following:
The Secret Supplementary Protocol signed on August 23,1939, shall be amended in item to the effect that the territory of the Lithuanian State falls to the sphere of influence of the U.S.S.R., while, on the other hand, the province of Lublin and parts of the province of Warsaw fall to the sphere of influence of Germany (cf. the map attached to the Boundary and Friendship Treaty signed today). As soon as the Government of the U.S.S.R. shall take special measures on Lithuanian territory to protect its interests, the present German-Lithuanian border, for the purpose of a natural and simple boundary delineation, shall be rectified in such a way that the Lithuanian territory situated to the southwest of the line marked on the attached map should fall to Germany.
Further it is declared that the economic agreements now in force between Germany and Lithuania shall not be affected by the measures of the Soviet Union referred to above.
Moscow, September 28,1939.
For the Government of the German Reich:
By authority of the Government of the U.S.S.R.: